1 /* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test SASymbolTableTest 26 * @summary Walk symbol table using SA, with and without CDS. 27 * Started failing on 2016.06.24 due to 8160376 on MacOS X so quarantine 28 * it on that platform: 29 * @requires os.family != "mac" 30 * @library /testlibrary 31 * @modules java.base/jdk.internal.misc 32 * jdk.hotspot.agent/sun.jvm.hotspot.oops 33 * jdk.hotspot.agent/sun.jvm.hotspot.memory 34 * jdk.hotspot.agent/sun.jvm.hotspot.runtime 35 * jdk.hotspot.agent/sun.jvm.hotspot.tools 36 * java.management 37 * @build SASymbolTableTestAgent SASymbolTableTestAttachee jdk.test.lib.* 38 * @run main SASymbolTableTest 39 */ 40 41 import jdk.test.lib.*; 42 43 /* 44 * The purpose of this test is to validate that we can use SA to 45 * attach a process and walk its SymbolTable, regardless whether 46 * the attachee process runs in CDS mode or not. 47 * 48 * SASymbolTableTest Just sets up the agent and attachee processes. 49 * The SymbolTable walking is done in the SASymbolTableTestAgent class. 50 */ 51 public class SASymbolTableTest { 52 static String jsaName = "./SASymbolTableTest.jsa"; 53 54 public static void main(String[] args) throws Exception { 55 if (!Platform.shouldSAAttach()) { 56 System.out.println("SA attach not expected to work - test skipped."); 57 return; 58 } 59 createArchive(); 60 run(true); 61 run(false); 62 } 63 64 private static void createArchive() throws Exception { 65 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 66 "-XX:+UnlockDiagnosticVMOptions", 67 "-XX:SharedArchiveFile=" + jsaName, 68 "-Xshare:dump"); 69 70 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 71 output.shouldContain("Loading classes to share"); 72 output.shouldHaveExitValue(0); 73 } 74 75 private static void run(boolean useArchive) throws Exception { 76 String flag = useArchive ? "auto" : "off"; 77 78 // (1) Launch the attachee process 79 ProcessBuilder attachee = ProcessTools.createJavaProcessBuilder( 80 "-XX:+UnlockDiagnosticVMOptions", 81 "-XX:SharedArchiveFile=" + jsaName, 82 "-Xshare:" + flag, 83 "-showversion", // so we can see "sharing" in the output 84 "SASymbolTableTestAttachee"); 85 86 final Process p = attachee.start(); 87 88 // (2) Launch the agent process 89 long pid = p.getPid(); 90 System.out.println("Attaching agent " + pid); 91 ProcessBuilder tool = ProcessTools.createJavaProcessBuilder( 92 "-XaddExports:jdk.hotspot.agent/sun.jvm.hotspot.oops=ALL-UNNAMED", 93 "-XaddExports:jdk.hotspot.agent/sun.jvm.hotspot.memory=ALL-UNNAMED", 94 "-XaddExports:jdk.hotspot.agent/sun.jvm.hotspot.runtime=ALL-UNNAMED", 95 "-XaddExports:jdk.hotspot.agent/sun.jvm.hotspot.tools=ALL-UNNAMED", 96 "SASymbolTableTestAgent", 97 Long.toString(pid)); 98 OutputAnalyzer output = ProcessTools.executeProcess(tool); 99 System.out.println(output.getOutput()); 100 output.shouldHaveExitValue(0); 101 102 Thread t = new Thread() { 103 public void run() { 104 try { 105 OutputAnalyzer output = new OutputAnalyzer(p); 106 System.out.println("STDOUT["); 107 System.out.print(output.getStdout()); 108 System.out.println("]"); 109 System.out.println("STDERR["); 110 System.out.print(output.getStderr()); 111 System.out.println("]"); 112 } catch (Throwable t) { 113 t.printStackTrace(); 114 } 115 } 116 }; 117 t.start(); 118 119 Thread.sleep(2 * 1000); 120 p.destroy(); 121 t.join(); 122 } 123 }